这里我们列举了最主要的7件事情，它们可能造就那些与空间UFO的恶作剧。
7. 闪电（Lightning）
Mysterious UFO sightings may go hand-in-hand with a natural weather phenomenon known as sprites — flashes high in the atmosphere triggered by thunderstorms. Sprites suddenly appear when lightning from thunderstorms excites the electric field above the storm, producing dancing flashes of bright light.
神秘的UFO情景可能会与被称为精灵的自然气象想象密切有关——由雷暴激发了大气中的闪烁。当雷暴所引起的闪电激起了超过雷阵雨的电场时，精灵就会突然出现，并由此产生了强光的摇晃闪耀
Sprites can take the form of fast-paced balls of electricity, although they can also form streaks or tendrils. "Winter sprites" are common in the northern hemisphere during winter months.
尽管精灵也可以形成条纹或卷须，精灵可以采取快节奏的电球的方式。 在北半球里，“冬季的精灵”是经常有的。
